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Gyaan Maths
CBSE · Class 6-12
Back to Finding Common Ground
Class 7 · Ganita Prakash · Unit 11: Finding Common Ground

HCF via Primes

Lesson 1 of 4
Factorise both; multiply common primes to lowest power. HCF(12,18)=2⋅3=6(12,18)=2\cdot 3=6.
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LCM via Primes
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Gyaan Maths — CBSE Class 6-12, built for board-toppers.
v1.1 · Sept 2026